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EP3931492B1 - Operator control panel and domestic appliance - Google Patents

Operator control panel and domestic appliance Download PDF

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Publication number
EP3931492B1
EP3931492B1 EP20707246.3A EP20707246A EP3931492B1 EP 3931492 B1 EP3931492 B1 EP 3931492B1 EP 20707246 A EP20707246 A EP 20707246A EP 3931492 B1 EP3931492 B1 EP 3931492B1
Authority
EP
European Patent Office
Prior art keywords
operator control
control panel
haptic
haptic actuator
panel according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20707246.3A
Other languages
German (de)
French (fr)
Other versions
EP3931492A1 (en
Inventor
Michael Reindl
Manfred STEINBACHER
Maximilian Wild
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP3931492A1 publication Critical patent/EP3931492A1/en
Application granted granted Critical
Publication of EP3931492B1 publication Critical patent/EP3931492B1/en
Active legal-status Critical Current
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGESĀ ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices
    • F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
    • G05G5/03—Means for enhancing the operator's awareness of arrival of the controlling member at a command or datum position; Providing feel, e.g. means for creating a counterforce

Definitions

  • the present invention relates to a control panel for a household appliance, in particular for a household cooking appliance, and to a household appliance, in particular a household cooking appliance, with such a control panel.
  • Ovens or other household appliances can be controlled via displays with sensory control panels.
  • Mechanical rotary selectors with detent can be replaced by full-touch graphic displays.
  • full-touch graphic displays there is a desire for haptic and/or acoustic operating feedback, as the user is used to from mechanical rotary selectors or mechanical operating buttons.
  • the EN 10 2015 103 874 A1 describes a program-controlled household appliance with a housing and a device for sound output, which comprises an acoustic transducer and a control device with a memory, which is designed to output a signal or data pattern to the acoustic transducer for generating acoustic outputs.
  • the device for sound output comprises a receiving device for receiving electrical signals or data patterns on a remote transmitting device in order to supply these received signals or data patterns to the acoustic transducer for conversion to output audio sequences or sound sequences.
  • the US 2018/0314287 A1 shows a household cooking appliance with a control panel on which rotatable control knobs are provided.
  • the control knobs can include haptic actuators.
  • the EN 10 2011 079 229 A1 describes a control panel for a household appliance.
  • the control panel has a panel carrier made of metal with at least one functional part holder made of plastic attached thereto, wherein at least one functional part holder is attached to the panel carrier by injection molding.
  • the DE 200 02 947 U1 shows a control panel for an electrical household appliance, which has a control, switching and/or display elements wired together a circuit board fitted with components for the household appliance, comprising at least two U-shaped retaining brackets and a decorative panel, the circuit board being fastened to the legs of the retaining brackets, the retaining brackets being glued with their base to the decorative panel, the operating elements protruding through recesses in the decorative panel, and a multi-core cable or a cable harness being provided for the electrical connection of the operating panel to the household appliance.
  • the US 2009/189747 A1 describes a household cooking appliance with a control panel on which rotating control knobs are provided.
  • the EN 10 2012 005 685 A1 shows an operating module for a technical device, wherein the operating module is arranged in a control panel of the technical device.
  • the US 6,154, 201 A describes an operating module with an operating front and an actuator that can output a haptic signal.
  • the actuator is assigned an operating button that is coupled to the actuator by means of a shaft that passes through the operating front.
  • the WO 2019/011908 A1 shows a display device which has at least one display module, at least one cover glass, wherein a mechanical insulation is arranged between the display module and the cover glass, and at least one actuator which is designed to stimulate a movement of the display.
  • one object of the present invention is to provide an improved control panel.
  • control panel for a household appliance, in particular for a household cooking appliance, is proposed.
  • the control panel comprises a control panel, a panel carrier that supports the control panel, and a haptic actuator that is coupled to the control panel in order to output a haptic signal to a user as feedback on the control process when the control panel is operated using the control panel, wherein the panel carrier has a recess through which the haptic actuator is guided to the control panel.
  • the haptic actuator is attached to the back of the control panel.
  • the haptic actuator is guided through the panel carrier, only the control panel can be subjected to vibrations to emit the haptic signal. It is therefore not necessary to stimulate the entire control panel. This can amplify the haptic signal and/or reduce the output of the haptic actuator.
  • the panel carrier is attached to the back of the control panel, in particular glued to it.
  • the haptic actuator is also attached to the back of the control panel.
  • the haptic actuator is glued directly to the control panel.
  • the haptic actuator is preferably a so-called structure-borne sound transducer in the form of an exciter.
  • Such a structure-borne sound transducer is essentially an electrodynamic loudspeaker without a membrane. This means that a voice coil of the structure-borne sound transducer does not drive a loudspeaker membrane, but is in particular directly connected to the control panel.
  • the control panel is preferably exposed to a haptic signal in the form of vibrations.
  • the control panel is in particular a touchscreen or includes a touchscreen.
  • touchscreen can also be replaced by the terms ā€œtouch screenā€, ā€œtactile screenā€ or ā€œsensor screenā€.
  • a ā€œtouchscreenā€ is understood here to mean a combined input and output device in which the program sequence of a technical device, in this case the household appliance, can be directly controlled by touching parts of an image.
  • the entire control panel of the control panel can be a touchscreen or selected areas, so-called ā€œbuttonsā€ or ā€œtouch buttonsā€, of the control panel can be designed as a touchscreen.
  • the haptic actuator is suitable for additionally emitting an acoustic signal as feedback to the operating process.
  • the acoustic signal can, for example, be a clicking sound that simulates the switching of a mechanical switch.
  • control panel further comprises an acoustic signal generator for emitting an acoustic signal as feedback to the operating process.
  • the acoustic signal generator can, for example, be a loudspeaker.
  • control panel further comprises an input and output device for detecting the operating process and for outputting an operating state of the household appliance.
  • the operating state can be, for example, a program selected using the input and output device.
  • the input and output device can be a display, in particular a touch display, or comprise one of these.
  • the input and output device can be used to display or output the operating state of the household appliance, for example.
  • the input and output device is also particularly suitable for detecting an input, for example a program selection, from the user to the household appliance.
  • the input and output device can detect a touch of the control panel.
  • the input and output device can be a sensory operator detection device, comprise such a sensory operator detection device, or be referred to as such.
  • the input and output device is accommodated in the recess.
  • the input and output device can be glued to the control panel.
  • the input and output device is provided on the rear of the control panel.
  • the panel carrier is also preferably provided on the rear of the control panel.
  • the haptic actuator is arranged next to the input and output device.
  • control panel further comprises a plurality of haptic actuators which are arranged distributed around the input and output device.
  • haptic actuators This allows different haptic signals to be generated. Furthermore, several different touch buttons can be implemented.
  • the input and output device is provided between the haptic actuators. The number of haptic actuators is arbitrary.
  • control panel further comprises an intermediate element which is arranged between the control front and the panel carrier.
  • a wall thickness of the intermediate element is greater than a wall thickness of the operating front.
  • the operating front can have a wall thickness of 1.5 mm.
  • the intermediate element can have a wall thickness of 3 mm.
  • the panel carrier is preferably a metal sheet.
  • the panel carrier can also have a wall thickness of about 1 mm.
  • the haptic actuator is guided through the intermediate element.
  • the intermediate element has an opening or a recess.
  • several openings or recesses can be provided in the intermediate element.
  • the intermediate element is glued to the operating front and the panel carrier.
  • the intermediate element is arranged in a sandwich-like manner between the control front and the panel carrier.
  • the intermediate element is made of a plastic material, in particular polymethyl methacrylate, and the operating front is made of glass.
  • any other suitable plastic material can be used for the intermediate element.
  • the use of glass gives a high-quality impression. It also protects the front panel from scratches.
  • the intermediate element comprises recesses with the aid of which a wave propagation of a structure-borne sound generated with the aid of the haptic actuator can be influenced.
  • This can be used, for example, to define a limited operating area, in particular a touch button, on the front panel.
  • the recesses each form a local depression on the control panel, whereby a local influence on the haptic signal can be achieved.
  • the "local influenceā€ can be an amplification or a reduction.
  • a household appliance in particular a household cooking appliance, with such a control panel is proposed.
  • the household appliance can be, for example, an oven or the like.
  • a device body of the household appliance has an insulating material to absorb structure-borne sound resonances of the haptic actuator.
  • Bitumen mats can be used as insulation or absorption material.
  • the control panel can be firmly connected to the appliance body, for example screwed, or it can be connected to it elastically, for example with the help of springs or an elastic material.
  • the appliance body can be a housing of the household appliance.
  • control panel and/or the household appliance also include combinations of features or embodiments described above or below with regard to the exemplary embodiments that are not explicitly mentioned.
  • the person skilled in the art will also add individual aspects as improvements or additions to the respective basic form of the control panel and/or the household appliance.
  • the Fig.1 shows a schematic perspective view of an embodiment of a household appliance 1.
  • the household appliance 1 is in particular a household cooking appliance.
  • the household appliance 1 can be an oven, an oven with a steam cooking function, a microwave combination oven, a double oven or the like.
  • the Household appliance 1 has a receiving space 2 that can be closed with the aid of a door 3.
  • the receiving space 2 can be a cooking space of the household appliance 1.
  • the receiving space 2 can also be referred to as a muffle or oven muffle.
  • the receiving space 2 can be arranged inside a housing of the household appliance 1.
  • Door 3 is in the Fig.1 shown in a closed position.
  • the door 3 can be closed or opened by pivoting about a pivot axis provided at a lower end or lower edge 4 of the door.
  • the door 3 can be hinged to the side of the receiving space 2.
  • the door 3 can be arranged on a baking trolley that can be pulled out of the receiving space 2.
  • a handle 6 can be provided on an upper section or on an upper edge 5 of the door 3.
  • the receiving space 2 has a floor 7, a ceiling 8 arranged opposite the floor 7, a rear wall 9 arranged opposite the closed door 3 and two side walls 10, 11 arranged opposite one another.
  • the receiving space 2 is preferably cuboid or cube-shaped.
  • the receiving space 2 can be made of a metal material, in particular of sheet steel.
  • the household appliance 1 further comprises a control panel 12, with the aid of which the household appliance 1 can be operated.
  • a temperature in the accommodation space 2 can be set and also displayed with the aid of the control panel 12.
  • the control panel 12 can be part of a control device 13, shown only schematically, for controlling the household appliance 1.
  • the control device 13 can be a regulating and/or control device.
  • the control panel 12 is attached to a device body 14 of the household appliance 1.
  • the Fig.2 shows a schematic front view of an embodiment of a control panel 12 as mentioned above.
  • Hidden components are shown in dashed lines.
  • the Fig.3 shows a schematic sectional view of the control panel 12 according to the interface III-III of the Fig.2 .
  • the following refers to the Fig.2 and 3 referred to at the same time.
  • the control panel 12 is in particular a touchscreen or includes a touchscreen.
  • touchscreen can also be replaced by the terms ā€œtouch screenā€, ā€œtouch screenā€ or ā€œsensor screenā€.
  • a ā€œtouchscreenā€ is understood to mean a combined input and output device in which the program sequence of a technical device can be directly controlled by touching parts of an image.
  • An entire control panel 15 of the control panel 12 can be a touchscreen or selected areas, so-called ā€œbuttonsā€ or ā€œtouch buttonsā€ of the control panel 15 can be designed as a touchscreen.
  • the control panel 15 can, for example, be a glass pane with a wall thickness of approximately 1.5 mm.
  • the control panel 12 also comprises a panel carrier 16 that supports the control panel 15.
  • the control panel 15 is glued to the panel carrier 16.
  • the panel carrier 16 is provided on the back of the control panel 15.
  • the panel carrier 16 can, for example, be a sheet steel.
  • the panel carrier 16 comprises an opening or a recess 17.
  • the recess 17 can, for example, have a rectangular geometry.
  • the panel carrier 16 can be firmly connected to the device body 14, for example screwed to it.
  • the input and output device 18 is accommodated in the recess 17.
  • the input and output device 18 can be a display, in particular a touch display. With the help of the input and output device 18, for example, an operating state of the household appliance 1 can be displayed or output.
  • the input and output device 18 is also suitable for detecting an input, for example a program selection, from a user on the household appliance 1.
  • the input and output device 18 can detect a touch of the operating front 15.
  • the input and output device 18 can be glued to the operating front 15.
  • the input and output device 18 is provided on the back of the operating front 15.
  • the input and output device 18 can be a sensory operator detection device or can be referred to as such.
  • a haptic actuator 19 is accommodated in the recess 17.
  • the haptic actuator 19 is positioned next to the input and output device 18.
  • the haptic actuator 19 is in particular through the recess 17 of the panel carrier 16 to the operating front 15.
  • the haptic actuator 19 is firmly connected to the operating front 15.
  • the haptic actuator 19 can be glued to the operating front 15.
  • the haptic actuator 19 is glued to the back of the operating front 15.
  • the haptic actuator 19 can also be referred to as a haptic actuating element or touch feedback element.
  • the haptic actuator 19 can be a cylindrical component. With the help of the haptic actuator 19, it is possible to output a haptic signal, for example in the form of vibrations, to the user via the control panel 15, so that the user receives feedback on an input made by the user to the input and output device 18.
  • the haptic actuator 19 is preferably a structure-borne sound transducer (English: exciter) or can be referred to as such.
  • a "structure-borne sound transducerā€ is an electrodynamic loudspeaker without a membrane. This means that a voice coil of the haptic actuator 19 does not drive a loudspeaker membrane, but is directly connected to the control panel 15.
  • the control panel 15 can be set into vibration according to the haptic signal.
  • the haptic actuator 19 and the input and output device 18 are coupled to a control unit 20.
  • the control unit 20 detects, for example, a touch of the operating front 15 with the aid of the input and output device 18.
  • the control unit 20 can also control the haptic actuator 19.
  • a haptic and/or acoustic signal is sent to the user by means of a corresponding control of the haptic actuator 19.
  • the haptic signal can be a vibration of the operating front 15.
  • the acoustic signal can be a clicking sound, for example.
  • the acoustic signal should simulate the operating sound of a mechanical switch as best as possible, in particular through a selected clicking sound. In conjunction with the haptic feedback, this results in a pleasant tactile feeling when operating the control panel 12.
  • the acoustic signal can either be superimposed on the haptic signal of the haptic actuator 19 or emitted using a separate acoustic signal generator 21.
  • the acoustic signal generator 21 is also coupled to the control unit 20.
  • the acoustic signal generator 21 can be a loudspeaker.
  • the input and output device 18 is, as previously mentioned, firmly connected to the control panel 15.
  • the input and output device 18 is glued to the control panel 15.
  • the control panel 12 is firmly connected to the device body 14. The entire control panel 12 is thus stimulated haptically when it is operated.
  • the control panel 12 can also be designed to swing. In this case, it is not firmly connected to the device body 14, but is coupled to it or suspended in it by means of elastic components. Mechanical springs or rubber-like materials, for example, are used as elastic components.
  • the haptic actuator 19 can thus more easily cause the elastically suspended control panel 12 to vibrate mechanically, which enables improved haptic feedback from the haptic actuator 19.
  • the Fig.4 shows a schematic front view of another embodiment of a control panel 12. Also in the Fig.4 Hidden components are shown in dashed lines.
  • the Fig.5 shows a schematic sectional view of the control panel 12 according to the section line VV of the Fig.4 . The following refers to the Fig.4 and 5 referred to at the same time.
  • control panel 12 comprises an intermediate element 22.
  • the panel carrier 16 comprises a recess 17 as previously explained.
  • the intermediate element 22 is arranged between the operating front 15 and the panel carrier 16.
  • the intermediate element 22 is preferably glued to the operating front 15 and to the panel carrier 16.
  • the intermediate element 22 is preferably made of a plastic material.
  • the intermediate element 22 can be made of polymethyl methacrylate (PMMA).
  • PMMA polymethyl methacrylate
  • the intermediate element 22 comprises a recess 23 in which an input and output device 18 as previously explained is accommodated.
  • the input and output device 18 can be glued to the operating front 15.
  • the intermediate element 22 comprises openings or recesses 24 to 27 in which haptic actuators 19 are accommodated as previously explained.
  • haptic actuators 19 are provided.
  • four such haptic actuators 19 can be provided, which are arranged through the panel carrier 16 and the intermediate element 22.
  • the haptic actuators 19 are coupled to a control unit 20 as previously explained.
  • an optional acoustic signal generator 21 is also operatively connected to the control unit 20.
  • the intermediate element 22 further comprises through-bridges or recesses 28 to 30, with the aid of which a wave propagation of a structure-borne sound generated with the aid of the haptic actuators 19 can be influenced.
  • the number and shape of the recesses 28 to 30 is arbitrary.
  • the recesses 28 to 30 penetrate the intermediate element 22 completely or only partially.
  • the control panel 12 In order to achieve a noticeable haptic effect or optimal sound transmission for acoustic signals when the control panel 12 is operated, it is necessary that the control panel 12 can be set into vibration and can therefore vibrate as freely as possible.
  • the size and shape of these recesses depends on the size of the area in which haptic operating feedback is to take place. The minimum size of this recess is determined by the size of the input and output device 18, which is arranged on the back of the control panel 15. If a certain mechanical stabilization of the panel carrier 16 cannot be dispensed with at this point, the connection must be designed in such a way that the haptic effect or the structure-borne sound waves can still spread.
  • the transfer of the haptics to the control panel 15 is highly dependent on the mechanical and geometric structure of the control panel 12. This structure determines an adjustment or reduction of the power of the haptic actuator 19 and/or the signal duration of the haptic signal, depending on the desired strength of the haptic feedback.
  • the position of the haptic actuator 19 on the control panel 15 depends on whether only individual areas of the same or the entire control panel 15 is to be equipped with the haptic feedback.
  • the haptic actuator 19 can be mounted on the back of the operating panel 15, directly at the position of the touch button or immediately to the left or right of the touch button.
  • the haptics should only be perceived locally at the location of the touch button.
  • Surrounding areas of the touch button are only weakly stimulated by the haptic signal and are not perceived as haptic feedback.
  • This can be achieved by applying a material that absorbs structure-borne sound to the control panel 12 and leaving space at the positions of the point haptics. This can be the plastic material of the intermediate element 22, for example.
  • a corresponding haptic actuator 19 with lower power can be used.
  • the control panel 12 can be made mechanically thinner at these points, in particular by means of recesses on the back of the control panel 15.
  • the recess in the control panel 15 can be made at the point where the haptic actuator 19 is arranged. In this case, the haptic actuator 19 is located in a recess.
  • This recess makes the control panel 15 thinner at this point, which makes it easier to stimulate the control panel 15 by the haptic actuator 19.
  • the area in which the haptics are to be perceived can be recessed.
  • the thinner control panel 15 makes the haptics more noticeable without changing the strength of the haptics.
  • the position of the haptic actuator 19 and the recess can be selected independently of one another. If larger areas are to be equipped with haptic feedback, as described with reference to the Fig.4 and 5 explains the provision of several haptic actuators 19, which are to be arranged to the left and/or right of the input and output device 18.
  • the intermediate element 22 can be optimized with regard to the sensitivity of the touch buttons and the desired strength of the haptic feedback.
  • the intermediate element 22 preferably has a wall thickness of about 3 mm.
  • the recesses 23 to 27 are provided for the input and output device 18 and the haptic actuators 19.
  • the recesses 28 to 30 are provided to optimize the vibration of the control panel 12.
  • the position of the haptic actuator 19 or the haptic actuators 19 on the control front 15 must be selected such that the reflection vibrations that arise at the edges of the control panel 12 overlap as much as possible with the excitation vibration of the haptic actuator 19 at the input and output device 18.
  • Each previously mentioned embodiment of the control panel 12 experiences a maximum vibration excitation by the haptic actuator 19 in a certain frequency range. This is determined by the resonance frequency of the control panel 12 and depends on the two storage elements, mass and internal spring of the materials used.
  • the internal damping of the materials of the entire control panel 12 system determines the quality of the vibration system and thus the amplitude of the mechanical vibration and the width of the frequency range. In the range of the resonance frequency, the power can be greatly reduced depending on the quality of the resonance. The stronger the resonance vibration, the lower the power of the haptic actuator 19 can be selected, but the narrower the frequency range becomes.
  • the haptic function can be optimized with regard to manufacturing tolerances of all components and the best possible vibration generation.
  • the sound transmission decoupling from the surrounding device body 14 with regard to its cavity resonances and resonating materials must also be solved structurally. This can be achieved, for example, by the targeted attachment of heavy adsorber materials, which dampens disturbing structure-borne sound resonances.
  • the structural design of the control panel 12 to optimize the operating feel It may therefore also be necessary to acoustically decouple the connection between the device body 14 and the control panel 12.
  • the vibrations of the haptic actuator 19 cause the control panel 12 to vibrate. These vibrations are also transmitted to the surrounding materials and can be perceived as disturbing noise. To prevent this, the number of connections, for example screw connections, between the device body 14 and the control panel 12 can be reduced. Alternatively, the existing connections can be decoupled from structure-borne noise using elastic suspensions. Connecting materials with high internal damping can also reduce the disturbing structure-borne noise in this case.
  • the control panel 12 explained above has a number of advantages. On the one hand, it creates the possibility of equipping a rigid control panel 12 with a haptic element.
  • the performance of the haptic actuator 19 can be reduced by the three-layer design of the control panel 12 described above.
  • the haptic touch perception can be improved by the described design influencing of the control panel 12. This results in the possibility of selective haptics on a rigid control panel 12 with the help of several haptic actuators 19 with reduced performance.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • User Interface Of Digital Computer (AREA)
  • Position Input By Displaying (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Push-Button Switches (AREA)

Description

Die vorliegende Erfindung betrifft eine Bedienblende fĆ¼r ein HaushaltsgerƤt, insbesondere fĆ¼r ein HaushaltsgargerƤt, und ein HaushaltsgerƤt, insbesondere ein HaushaltsgargerƤt, mit einer derartigen Bedienblende.The present invention relates to a control panel for a household appliance, in particular for a household cooking appliance, and to a household appliance, in particular a household cooking appliance, with such a control panel.

Backƶfen oder andere HaushaltsgerƤte kƶnnen Ć¼ber Displays mit sensorischen Bedienfeldern gesteuert werden. Mechanische DrehwƤhler mit Rastung kƶnnen hierbei durch Voll-Touch-Graphik-Displays ersetzt werden. Auch bei derartigen Voll-Touch-Graphik-Displays besteht jedoch der Wunsch nach einem haptischen und/oder akustischen Bedien-Feedback, wie es der Benutzer von mechanischen DrehwƤhlern beziehungsweise von mechanischen Bedien-Buttons gewohnt ist.Ovens or other household appliances can be controlled via displays with sensory control panels. Mechanical rotary selectors with detent can be replaced by full-touch graphic displays. However, even with such full-touch graphic displays, there is a desire for haptic and/or acoustic operating feedback, as the user is used to from mechanical rotary selectors or mechanical operating buttons.

Die DE 10 2015 103 874 A1 beschreibt ein programmgesteuertes HaushaltsgerƤt mit einem GehƤuse und einer Einrichtung zur Klangausgabe, die einen Akustikwandler und eine Steuereinrichtung mit einem Speicher umfasst, die dazu eingerichtet ist, ein Signal oder Datenmuster an den Akustikwandler zur Erzeugung von akustischen Ausgaben auszugeben. Die Einrichtung zur Klangausgabe umfasst eine Empfangseinrichtung zum Empfang von elektrischen Signalen oder Datenmustern auf einer entfernten Sendeeinrichtung, um diese empfangenen Signale oder Datenmuster zur Umwandlung dem Akustikwandler zur Ausgabe von Audiosequenzen oder Klangsequenzen zuzufĆ¼hren.The EN 10 2015 103 874 A1 describes a program-controlled household appliance with a housing and a device for sound output, which comprises an acoustic transducer and a control device with a memory, which is designed to output a signal or data pattern to the acoustic transducer for generating acoustic outputs. The device for sound output comprises a receiving device for receiving electrical signals or data patterns on a remote transmitting device in order to supply these received signals or data patterns to the acoustic transducer for conversion to output audio sequences or sound sequences.

Die US 2018/0314287 A1 zeigt ein HaushaltsgargerƤt mit einer Bedienblende, an der drehbare BedienknƤufe vorgesehen sind. Die BedienknƤufe kƶnnen Haptikaktuatoren umfassen.The US 2018/0314287 A1 shows a household cooking appliance with a control panel on which rotatable control knobs are provided. The control knobs can include haptic actuators.

Die DE 10 2011 079 229 A1 beschreibt eine Bedienblende fĆ¼r ein HaushaltsgerƤt. Die Bedienblende weist einen BlendentrƤger aus Metall mit mindestens einer daran befestigten Funktionsteil-Aufnahme aus Kunststoff auf, wobei mindestens eine Funktionsteil-Aufnahme durch Anspritzen an dem BlendentrƤger befestigt ist.The EN 10 2011 079 229 A1 describes a control panel for a household appliance. The control panel has a panel carrier made of metal with at least one functional part holder made of plastic attached thereto, wherein at least one functional part holder is attached to the panel carrier by injection molding.

Die DE 200 02 947 U1 zeigt eine Bedienblende fĆ¼r ein elektrisches HaushaltsgerƤt, welche eine mit miteinander verdrahteten Bedien-, Steuer-, Schalt- und/oder Anzeigeelementen fĆ¼r das HaushaltsgerƤt bestĆ¼ckte Leiterplatte, mindestens zwei U-fƶrmige Haltewinkel und eine Dekorblende aufweist, wobei die Leiterplatte auf den Schenkeln der Haltewinkel befestigt ist, die Haltewinkel mit ihrer Basis auf die Dekorblende geklebt sind, die Bedienelemente durch Aussparungen in der Dekorblende hindurchragen und ein mehradriges Kabel beziehungsweise ein Kabelbaum fĆ¼r den elektrischen Anschluss der Bedienblende an das HaushaltsgerƤt vorgesehen ist.The DE 200 02 947 U1 shows a control panel for an electrical household appliance, which has a control, switching and/or display elements wired together a circuit board fitted with components for the household appliance, comprising at least two U-shaped retaining brackets and a decorative panel, the circuit board being fastened to the legs of the retaining brackets, the retaining brackets being glued with their base to the decorative panel, the operating elements protruding through recesses in the decorative panel, and a multi-core cable or a cable harness being provided for the electrical connection of the operating panel to the household appliance.

Die US 2009/189747 A1 beschreibt ein HaushaltsgargerƤt mit einer Bedienblende, an der drehbare BedienknƤufe vorgesehen sind.The US 2009/189747 A1 describes a household cooking appliance with a control panel on which rotating control knobs are provided.

Die DE 10 2012 005 685 A1 zeigt ein Bedienmodul fĆ¼r eine technische Vorrichtung, wobei das Bedienmodul in einem Bedienfeld der technischen Vorrichtung angeordnet ist.The EN 10 2012 005 685 A1 shows an operating module for a technical device, wherein the operating module is arranged in a control panel of the technical device.

Die US 6,154, 201 A beschreibt ein Bedienmodul mit einer Bedienfront und einem Aktuator, der ein haptisches Signal ausgeben kann. Dem Aktuator ist ein BetƤtigungsknopf zugeordnet, der mit Hilfe einer durch die Bedienfront hindurchgefĆ¼hrten Welle mit dem Aktuator gekoppelt ist.The US 6,154, 201 A describes an operating module with an operating front and an actuator that can output a haptic signal. The actuator is assigned an operating button that is coupled to the actuator by means of a shaft that passes through the operating front.

Die WO 2019/011908 A1 zeigt eine Anzeigevorrichtung, die mindestens ein Displaymodul, mindestens ein Deckglas, wobei zwischen dem Displaymodul und dem Deckglas eine mechanische Isolierung angeordnet ist, und mindestens einen Aktuator aufweist, der ausgebildet ist, um eine Bewegung des Displays anzuregen.The WO 2019/011908 A1 shows a display device which has at least one display module, at least one cover glass, wherein a mechanical insulation is arranged between the display module and the cover glass, and at least one actuator which is designed to stimulate a movement of the display.

Vor diesem Hintergrund besteht eine Aufgabe der vorliegenden Erfindung darin, eine verbesserte Bedienblende zur VerfĆ¼gung zu stellen.Against this background, one object of the present invention is to provide an improved control panel.

DemgemƤƟ wird eine Bedienblende fĆ¼r ein HaushaltsgerƤt, insbesondere fĆ¼r ein HaushaltsgargerƤt, vorgeschlagen. Die Bedienblende umfasst eine Bedienfront, einen BlendentrƤger, der die Bedienfront trƤgt, und einen Haptikaktuator, der mit der Bedienfront gekoppelt ist, um bei einem Bedienvorgang der Bedienblende mit Hilfe der Bedienfront ein haptisches Signal als RĆ¼ckmeldung auf den Bedienvorgang an einen Benutzer auszugeben, wobei der BlendentrƤger eine Ausnehmung aufweist, durch die hindurch der Haptikaktuator zu der Bedienfront hingefĆ¼hrt ist. Dabei ist der Haptikaktuator rĆ¼ckseitig an der Bedienfront angebracht.Accordingly, a control panel for a household appliance, in particular for a household cooking appliance, is proposed. The control panel comprises a control panel, a panel carrier that supports the control panel, and a haptic actuator that is coupled to the control panel in order to output a haptic signal to a user as feedback on the control process when the control panel is operated using the control panel, wherein the panel carrier has a recess through which the haptic actuator is guided to the control panel. The haptic actuator is attached to the back of the control panel.

Dadurch, dass der Haptikaktuator durch den BlendentrƤger hindurchgefĆ¼hrt ist, kann gezielt nur die Bedienfront zur Ausgebung des haptischen Signals mit Schwingungen beaufschlagt werden. Es ist daher nicht erforderlich, die gesamte Bedienblende anzuregen. Hierdurch kann das haptische Signal verstƤrkt werden und/oder eine Leistung des Haptikaktuators kann reduziert werden.Because the haptic actuator is guided through the panel carrier, only the control panel can be subjected to vibrations to emit the haptic signal. It is therefore not necessary to stimulate the entire control panel. This can amplify the haptic signal and/or reduce the output of the haptic actuator.

Der BlendentrƤger ist rĆ¼ckseitig an der Bedienfront angebracht, insbesondere mit dieser verklebt. Auch der Haptikaktuator ist rĆ¼ckseitig an der Bedienfront angebracht. Beispielsweise ist der Haptikaktuator direkt mit der Bedienfront verklebt. Der Haptikaktuator ist vorzugsweise ein sogenannter Kƶrperschallwandler in Form eines Anregers (Engl.: exciter). Bei einem derartigen Kƶrperschallwandler handelt es sich im Wesentlichen um einen elektrodynamischen Lautsprecher ohne Membran. Das heiƟt, eine Schwingspule des Kƶrperschallwandlers treibt keine Lautsprechermembran an, sondern ist insbesondere direkt mit der Bedienfront verbunden. Hierbei wird die Bedienfront bevorzugt mit einem haptischen Signal in Form von Schwingungen beaufschlagt.The panel carrier is attached to the back of the control panel, in particular glued to it. The haptic actuator is also attached to the back of the control panel. For example, the haptic actuator is glued directly to the control panel. The haptic actuator is preferably a so-called structure-borne sound transducer in the form of an exciter. Such a structure-borne sound transducer is essentially an electrodynamic loudspeaker without a membrane. This means that a voice coil of the structure-borne sound transducer does not drive a loudspeaker membrane, but is in particular directly connected to the control panel. The control panel is preferably exposed to a haptic signal in the form of vibrations.

Die Bedienblende ist insbesondere ein Touchscreen oder umfasst einen Touchscreen. Der Begriff "Touchscreen" kann auch durch die Begriffe "BerĆ¼hrungsbildschirm", "Tastbildschirm" oder "Sensorbildschirm" ersetzt werden. Unter einem "Touchscreen" ist vorliegend ein kombiniertes Ein- und AusgabegerƤt zu verstehen, bei dem durch BerĆ¼hrung von Teilen eines Bildes der Programmablauf eines technischen GerƤtes, vorliegend das HaushaltsgerƤt, direkt gesteuert werden kann. Dabei kann die gesamte Bedienfront der Bedienblende ein Touchscreen sein oder es kƶnnen ausgewƤhlte Bereiche, sogenannte "Buttons" oder "Touchbuttons", der Bedienfront als Touchscreen ausgebildet sein. GemƤƟ einer AusfĆ¼hrungsform ist der Haptikaktuator geeignet, als RĆ¼ckmeldung auf den Bedienvorgang zusƤtzlich ein akustisches Signal auszugeben.The control panel is in particular a touchscreen or includes a touchscreen. The term "touchscreen" can also be replaced by the terms "touch screen", "tactile screen" or "sensor screen". A "touchscreen" is understood here to mean a combined input and output device in which the program sequence of a technical device, in this case the household appliance, can be directly controlled by touching parts of an image. The entire control panel of the control panel can be a touchscreen or selected areas, so-called "buttons" or "touch buttons", of the control panel can be designed as a touchscreen. According to one embodiment, the haptic actuator is suitable for additionally emitting an acoustic signal as feedback to the operating process.

Hierdurch kann vorteilhafterweise zusƤtzlich zu dem haptischen Signal noch ein akustisches Signal ausgegeben werden. Das akustische Signal kann beispielsweise ein KlickgerƤusch sein, welches das Schalten eines mechanischen Schalters simuliert.This advantageously allows an acoustic signal to be emitted in addition to the haptic signal. The acoustic signal can, for example, be a clicking sound that simulates the switching of a mechanical switch.

GemƤƟ einer weiteren AusfĆ¼hrungsform umfasst die Bedienblende ferner einen akustischen Signalgeber zum Ausgeben eines akustischen Signals als RĆ¼ckmeldung auf den Bedienvorgang.According to a further embodiment, the control panel further comprises an acoustic signal generator for emitting an acoustic signal as feedback to the operating process.

Der akustische Signalgeber kann beispielsweise ein Lautsprecher sein.The acoustic signal generator can, for example, be a loudspeaker.

GemƤƟ einer weiteren AusfĆ¼hrungsform umfasst die Bedienblende ferner eine Ein- und Ausgabeeinrichtung zum Erfassen des Bedienvorgangs und zum Ausgeben eines Betriebszustands des HaushaltsgerƤts.According to a further embodiment, the control panel further comprises an input and output device for detecting the operating process and for outputting an operating state of the household appliance.

Der Betriebszustand kann beispielsweise ein mit Hilfe der Ein- und Ausgabeeinrichtung gewƤhltes Programm sein. Die Ein- und Ausgabeeinrichtung kann ein Display, insbesondere ein Touchdisplay, sein oder ein derartiges umfassen. Mit Hilfe der Ein- und Ausgabeeinrichtung kann beispielsweise der Betriebszustand des HaushaltsgerƤts angezeigt oder ausgegeben werden. Gleichzeitig ist die Ein- und Ausgabeeinrichtung insbesondere auch geeignet, eine Eingabe, beispielsweise eine Programmwahl, des Benutzers an das HaushaltsgerƤt zu erfassen. Beispielsweise kann die Ein- und Ausgabeeinrichtung eine BerĆ¼hrung der Bedienfront erfassen. Die Ein- und Ausgabeeinrichtung kann eine sensorische Bedienerfassungseinrichtung sein eine derartige sensorische Bedienerfassungseinrichtung umfassen oder als solche bezeichnet werden.The operating state can be, for example, a program selected using the input and output device. The input and output device can be a display, in particular a touch display, or comprise one of these. The input and output device can be used to display or output the operating state of the household appliance, for example. At the same time, the input and output device is also particularly suitable for detecting an input, for example a program selection, from the user to the household appliance. For example, the input and output device can detect a touch of the control panel. The input and output device can be a sensory operator detection device, comprise such a sensory operator detection device, or be referred to as such.

GemƤƟ einer weiteren AusfĆ¼hrungsform ist die Ein- und Ausgabeeinrichtung in der Ausnehmung aufgenommen.According to a further embodiment, the input and output device is accommodated in the recess.

Die Ein- und Ausgabeeinrichtung kann mit der Bedienfront verklebt sein. Insbesondere ist die Ein- und Ausgabeeinrichtung rĆ¼ckseitig an der Bedienfront vorgesehen. Auch der BlendentrƤger ist bevorzugt rĆ¼ckseitig an der Bedienfront vorgesehen.The input and output device can be glued to the control panel. In particular, the input and output device is provided on the rear of the control panel. The panel carrier is also preferably provided on the rear of the control panel.

GemƤƟ einer weiteren AusfĆ¼hrungsform ist der Haptikaktuator neben der Ein- und Ausgabeeinrichtung angeordnet.According to a further embodiment, the haptic actuator is arranged next to the input and output device.

Hierdurch ergibt sich ein kompakter Aufbau der Bedienblende.This results in a compact design of the control panel.

GemƤƟ einer weiteren AusfĆ¼hrungsform umfasst die Bedienblende ferner eine Vielzahl an Haptikaktuatoren, die um die Ein- und Ausgabeeinrichtung herum verteilt angeordnet sind.According to a further embodiment, the control panel further comprises a plurality of haptic actuators which are arranged distributed around the input and output device.

Hierdurch kƶnnen unterschiedliche haptische Signale erzeugt werden. Ferner kƶnnen mehrere unterschiedliche Touchbuttons verwirklicht werden. Insbesondere ist die Ein- und Ausgabeeinrichtung zwischen den Haptikaktuatoren vorgesehen. Die Anzahl der Haptikaktuatoren ist beliebig.This allows different haptic signals to be generated. Furthermore, several different touch buttons can be implemented. In particular, the input and output device is provided between the haptic actuators. The number of haptic actuators is arbitrary.

GemƤƟ einer weiteren AusfĆ¼hrungsform umfasst die Bedienblende ferner ein Zwischenelement, welches zwischen der Bedienfront und dem BlendentrƤger angeordnet ist.According to a further embodiment, the control panel further comprises an intermediate element which is arranged between the control front and the panel carrier.

Vorzugsweise ist eine WandstƤrke des Zwischenelements grĆ¶ĆŸer als eine WandstƤrke der Bedienfront. Beispielsweise kann die Bedienfront eine WandstƤrke von 1,5 mm aufweisen. Das Zwischenelement kann eine WandstƤrke von 3 mm aufweisen. Der BlendentrƤger ist vorzugsweise ein Metallblech. Auch der BlendentrƤger kann eine WandstƤrke von etwa 1 mm aufweisen.Preferably, a wall thickness of the intermediate element is greater than a wall thickness of the operating front. For example, the operating front can have a wall thickness of 1.5 mm. The intermediate element can have a wall thickness of 3 mm. The panel carrier is preferably a metal sheet. The panel carrier can also have a wall thickness of about 1 mm.

GemƤƟ einer weiteren AusfĆ¼hrungsform ist der Haptikaktuator durch das Zwischenelement hindurchgefĆ¼hrt.According to a further embodiment, the haptic actuator is guided through the intermediate element.

Hierzu weist das Zwischenelement einen Durchbruch oder eine Ausnehmung auf. Vorzugsweise kƶnnen fĆ¼r den Fall, dass mehrere Haptikaktuatoren vorgesehen sind, mehrere DurchbrĆ¼che oder Ausnehmungen in dem Zwischenelement vorgesehen sein.For this purpose, the intermediate element has an opening or a recess. Preferably, in the event that several haptic actuators are provided, several openings or recesses can be provided in the intermediate element.

GemƤƟ einer weiteren AusfĆ¼hrungsform ist das Zwischenelement mit der Bedienfront und dem BlendentrƤger verklebt.According to a further embodiment, the intermediate element is glued to the operating front and the panel carrier.

Dies ergibt eine dauerhafte und feste Verbindung zwischen den Bauteilen der Bedienblende. Das Zwischenelement ist insbesondere sandwichartig zwischen der Bedienfront und dem BlendentrƤger angeordnet.This results in a permanent and firm connection between the components of the control panel. The intermediate element is arranged in a sandwich-like manner between the control front and the panel carrier.

GemƤƟ einer weiteren AusfĆ¼hrungsform ist das Zwischenelement aus einem Kunststoffmaterial, insbesondere aus Polymethylmethacrylat, und die Bedienfront ist aus Glas gefertigt.According to a further embodiment, the intermediate element is made of a plastic material, in particular polymethyl methacrylate, and the operating front is made of glass.

Alternativ kann jedes andere geeignete Kunststoffmaterial fĆ¼r das Zwischenelement eingesetzt werden. Die Verwendung von Glas vermittelt einen hochwertigen Eindruck. Ferner ist die Bedienfront hierdurch vor einem Verkratzen geschĆ¼tzt.Alternatively, any other suitable plastic material can be used for the intermediate element. The use of glass gives a high-quality impression. It also protects the front panel from scratches.

GemƤƟ einer weiteren AusfĆ¼hrungsform umfasst das Zwischenelement Ausnehmungen, mit deren Hilfe eine Wellenausbreitung eines mit Hilfe des Haptikaktuators erzeugten Kƶrperschalls beeinflussbar ist.According to a further embodiment, the intermediate element comprises recesses with the aid of which a wave propagation of a structure-borne sound generated with the aid of the haptic actuator can be influenced.

Hierdurch kann die Haptik lokal verstƤrkt oder reduziert werden. Hierdurch kann beispielsweise ein begrenzter Bedienbereich, insbesondere ein Touchbutton, an der Bedienfront definiert werden.This allows the haptics to be locally enhanced or reduced. This can be used, for example, to define a limited operating area, in particular a touch button, on the front panel.

GemƤƟ einer weiteren AusfĆ¼hrungsform bilden die Ausnehmungen jeweils eine lokale Einsenkung an der Bedienblende, wodurch eine lokale Beeinflussung des haptischen Signals erzielbar ist.According to a further embodiment, the recesses each form a local depression on the control panel, whereby a local influence on the haptic signal can be achieved.

Hierdurch kann die Leistung des Haptikaktuators reduziert werden. Die "lokale Beeinflussung" kann eine VerstƤrkung oder eine Reduzierung sein.This can reduce the performance of the haptic actuator. The "local influence" can be an amplification or a reduction.

Ferner wird ein HaushaltsgerƤt, insbesondere ein HaushaltsgargerƤt, mit einer derartigen Bedienblende vorgeschlagen.Furthermore, a household appliance, in particular a household cooking appliance, with such a control panel is proposed.

Das HaushaltsgerƤt kann beispielsweise ein Backofen oder dergleichen sein.The household appliance can be, for example, an oven or the like.

GemƤƟ einer AusfĆ¼hrungsform weist ein GerƤtekorpus des HaushaltsgerƤts ein DƤmmmaterial auf, um Kƶrperschallresonanzen des Haptikaktuators zu absorbieren.According to one embodiment, a device body of the household appliance has an insulating material to absorb structure-borne sound resonances of the haptic actuator.

Dies verhindert eine unerwĆ¼nschte GerƤuschbildung. Als DƤmmmaterial oder Absorptionsmaterial kƶnnen beispielsweise Bitumenmatten eingesetzt werden. Die Bedienblende kann mit dem GerƤtekorpus fest verbunden, beispielsweise verschraubt, sein oder elastisch, beispielsweise mit Hilfe von Federn oder einem elastischen Material, mit diesem verbunden sein. Der GerƤtekorpus kann ein GehƤuse des HaushaltsgerƤts sein.This prevents unwanted noise. Bitumen mats can be used as insulation or absorption material. The control panel can be firmly connected to the appliance body, for example screwed, or it can be connected to it elastically, for example with the help of springs or an elastic material. The appliance body can be a housing of the household appliance.

Weitere mƶgliche Implementierungen der Bedienblende und/oder des HaushaltsgerƤts umfassen auch nicht explizit genannte Kombinationen von zuvor oder im Folgenden bezĆ¼glich der AusfĆ¼hrungsbeispiele beschriebenen Merkmalen oder AusfĆ¼hrungsformen. Dabei wird der Fachmann auch Einzelaspekte als Verbesserungen oder ErgƤnzungen zu der jeweiligen Grundform der Bedienblende und/oder des HaushaltsgerƤts hinzufĆ¼gen.Other possible implementations of the control panel and/or the household appliance also include combinations of features or embodiments described above or below with regard to the exemplary embodiments that are not explicitly mentioned. The person skilled in the art will also add individual aspects as improvements or additions to the respective basic form of the control panel and/or the household appliance.

Weitere vorteilhafte Ausgestaltungen und Aspekte der Bedienblende und/oder des HaushaltsgerƤts sind Gegenstand der UnteransprĆ¼che sowie der im Folgenden beschriebenen AusfĆ¼hrungsbeispiele der Bedienblende und/oder des HaushaltsgerƤts. Im Weiteren werden die Bedienblende und/oder das HaushaltsgerƤt anhand von bevorzugten AusfĆ¼hrungsformen unter Bezugnahme auf die beigelegten Figuren nƤher erlƤutert.

Fig. 1
zeigt eine schematische perspektivische Ansicht einer AusfĆ¼hrungsform eines HaushaltsgerƤts;
Fig. 2
zeigt eine schematische Vorderansicht einer AusfĆ¼hrungsform einer Bedienblende fĆ¼r das HaushaltsgerƤt gemƤƟ Fig. 1;
Fig. 3
zeigt eine schematische Schnittansicht der Bedienblende gemƤƟ der Schnittlinie III-III der Fig. 2;
Fig. 4
zeigt eine schematische Vorderansicht einer weiteren AusfĆ¼hrungsform einer Bedienblende fĆ¼r das HaushaltsgerƤt gemƤƟ Fig. 1; und
Fig. 5
zeigt eine schematische Schnittansicht der Bedienblende gemƤƟ der Schnittlinie V-V der Fig. 4.
Further advantageous embodiments and aspects of the control panel and/or the household appliance are the subject of the subclaims and the embodiments of the control panel and/or the household appliance described below. The control panel and/or the household appliance are explained in more detail below using preferred embodiments with reference to the attached figures.
Fig.1
shows a schematic perspective view of an embodiment of a household appliance;
Fig.2
shows a schematic front view of an embodiment of a control panel for the household appliance according to Fig.1 ;
Fig.3
shows a schematic sectional view of the control panel according to section line III-III of the Fig. 2 ;
Fig.4
shows a schematic front view of another embodiment of a control panel for the household appliance according to Fig.1 ; and
Fig.5
shows a schematic sectional view of the control panel according to the section line VV of the Fig.4 .

In den Figuren sind gleiche oder funktionsgleiche Elemente mit denselben Bezugszeichen versehen worden, sofern nichts anderes angegeben ist.In the figures, identical or functionally equivalent elements have been given the same reference numerals unless otherwise stated.

Die Fig. 1 zeigt eine schematische perspektivische Ansicht einer AusfĆ¼hrungsform eines HaushaltsgerƤts 1. Das HaushaltsgerƤt 1 ist insbesondere ein HaushaltsgargerƤt. Beispielsweise kann das HaushaltsgerƤt 1 ein Backofen, ein Backofen mit Dampfgarfunktion, ein Mikrowellen-Kombinationsbackofen, ein Doppelbackofen oder dergleichen sein. Das HaushaltsgerƤt 1 weist einen Aufnahmeraum 2 auf, der mit Hilfe einer TĆ¼r 3 verschlieƟbar ist. Der Aufnahmeraum 2 kann ein Garraum des HaushaltsgerƤts 1 sein. Der Aufnahmeraum 2 kann auch als Muffel oder Backofenmuffel bezeichnet werden. Der Aufnahmeraum 2 kann im Inneren eines GehƤuses des HaushaltsgerƤts 1 angeordnet sein.The Fig.1 shows a schematic perspective view of an embodiment of a household appliance 1. The household appliance 1 is in particular a household cooking appliance. For example, the household appliance 1 can be an oven, an oven with a steam cooking function, a microwave combination oven, a double oven or the like. The Household appliance 1 has a receiving space 2 that can be closed with the aid of a door 3. The receiving space 2 can be a cooking space of the household appliance 1. The receiving space 2 can also be referred to as a muffle or oven muffle. The receiving space 2 can be arranged inside a housing of the household appliance 1.

Die TĆ¼r 3 ist in der Fig. 1 in einer geschlossenen Stellung dargestellt. Durch ein Schwenken um eine an einem unteren Ende oder einer Unterkante 4 der TĆ¼r vorgesehene Schwenkachse kann die TĆ¼r 3 geschlossen oder geƶffnet werden. Alternativ kann die TĆ¼r 3 seitlich an dem Aufnahmeraum 2 angeschlagen sein. Ferner kann die TĆ¼r 3 an einem aus dem Aufnahmeraum 2 herausziehbaren Backwagen angeordnet sein.Door 3 is in the Fig.1 shown in a closed position. The door 3 can be closed or opened by pivoting about a pivot axis provided at a lower end or lower edge 4 of the door. Alternatively, the door 3 can be hinged to the side of the receiving space 2. Furthermore, the door 3 can be arranged on a baking trolley that can be pulled out of the receiving space 2.

An einem oberen Abschnitt oder an einer Oberkante 5 der TĆ¼r 3 kann ein Griff 6 vorgesehen sein. Der Aufnahmeraum 2 weist einen Boden 7, eine dem Boden 7 gegenĆ¼berliegend angeordnete Decke 8, eine der geschlossenen TĆ¼r 3 gegenĆ¼berliegend angeordnete RĆ¼ckwand 9 und zwei einander gegenĆ¼berliegend angeordnete SeitenwƤnde 10, 11 auf. Der Aufnahmeraum 2 ist vorzugsweise quader- oder wĆ¼rfelfƶrmig. Der Aufnahmeraum 2 kann aus einem Metallwerkstoff, insbesondere aus einem Stahlblech, gefertigt sein.A handle 6 can be provided on an upper section or on an upper edge 5 of the door 3. The receiving space 2 has a floor 7, a ceiling 8 arranged opposite the floor 7, a rear wall 9 arranged opposite the closed door 3 and two side walls 10, 11 arranged opposite one another. The receiving space 2 is preferably cuboid or cube-shaped. The receiving space 2 can be made of a metal material, in particular of sheet steel.

Das HaushaltsgerƤt 1 umfasst weiterhin eine Bedienblende 12, mit deren Hilfe das HaushaltsgerƤt 1 bedienbar ist. Beispielsweise kann mit Hilfe der Bedienblende 12 eine Temperatur in dem Aufnahmeraum 2 eingestellt und auch angezeigt werden. Die Bedienblende 12 kann Teil einer nur schematisch gezeigten Steuereinrichtung 13 zum Steuern des HaushaltsgerƤts 1 sein. Die Steuereinrichtung 13 kann eine Regel- und/oder Steuereinrichtung sein. Die Bedienblende 12 ist an einem GerƤtekorpus 14 des HaushaltsgerƤts 1 angebracht.The household appliance 1 further comprises a control panel 12, with the aid of which the household appliance 1 can be operated. For example, a temperature in the accommodation space 2 can be set and also displayed with the aid of the control panel 12. The control panel 12 can be part of a control device 13, shown only schematically, for controlling the household appliance 1. The control device 13 can be a regulating and/or control device. The control panel 12 is attached to a device body 14 of the household appliance 1.

Die Fig. 2 zeigt eine schematische Vorderansicht einer AusfĆ¼hrungsform einer wie zuvor erwƤhnten Bedienblende 12. In der Fig. 2 sind verdeckte Bauteile gestrichelt dargestellt. Die Fig. 3 zeigt eine schematische Schnittansicht der Bedienblende 12 gemƤƟ der Schnittstelle III-III der Fig. 2. Nachfolgend wird auf die Fig. 2 und 3 gleichzeitig Bezug genommen.The Fig.2 shows a schematic front view of an embodiment of a control panel 12 as mentioned above. In the Fig.2 Hidden components are shown in dashed lines. The Fig.3 shows a schematic sectional view of the control panel 12 according to the interface III-III of the Fig.2 . The following refers to the Fig.2 and 3 referred to at the same time.

Die Bedienblende 12 ist insbesondere ein Touchscreen oder umfasst einen Touchscreen. Der Begriff "Touchscreen" kann auch durch die Begriffe "BerĆ¼hrungsbildschirm", "Tastbildschirm" oder "Sensorbildschirm" ersetzt werden. Unter einem "Touchscreen" ist vorliegend ein kombiniertes Ein- und AusgabegerƤt zu verstehen, bei dem durch BerĆ¼hrung von Teilen eines Bildes der Programmablauf eines technischen GerƤtes direkt gesteuert werden kann. Dabei kann eine gesamte Bedienfront 15 der Bedienblende 12 ein Touchscreen sein oder es kƶnnen ausgewƤhlte Bereiche, sogenannte "Buttons" oder "Touchbuttons" der Bedienfront 15 als Touchscreen ausgebildet sein.The control panel 12 is in particular a touchscreen or includes a touchscreen. The term "touchscreen" can also be replaced by the terms "touch screen", "touch screen" or "sensor screen". In this case, a "touchscreen" is understood to mean a combined input and output device in which the program sequence of a technical device can be directly controlled by touching parts of an image. An entire control panel 15 of the control panel 12 can be a touchscreen or selected areas, so-called "buttons" or "touch buttons" of the control panel 15 can be designed as a touchscreen.

Zum Bedienen der Bedienblende 12 kann ein Benutzer die Bedienfront 15 berĆ¼hren und gegebenenfalls Druck auf diese ausĆ¼ben. Die Bedienfront 15 kann beispielsweise eine Glasscheibe mit einer WandstƤrke von etwa 1,5 mm sein. Die Bedienblende 12 umfasst weiterhin einen BlendentrƤger 16, der die Bedienfront 15 trƤgt. Beispielsweise ist die Bedienfront 15 auf dem BlendentrƤger 16 aufgeklebt. Der BlendentrƤger 16 ist rĆ¼ckseitig an der Bedienfront 15 vorgesehen. Der BlendentrƤger 16 kann beispielsweise ein Stahlblech sein. Der BlendentrƤger 16 umfasst einen Durchbruch oder eine Ausnehmung 17. Die Ausnehmung 17 kann beispielsweise eine rechteckfƶrmige Geometrie aufweisen. Der BlendentrƤger 16 kann mit dem GerƤtekorpus 14 fest verbunden, beispielsweise mit diesem verschraubt, sein.To operate the control panel 12, a user can touch the control panel 15 and, if necessary, apply pressure to it. The control panel 15 can, for example, be a glass pane with a wall thickness of approximately 1.5 mm. The control panel 12 also comprises a panel carrier 16 that supports the control panel 15. For example, the control panel 15 is glued to the panel carrier 16. The panel carrier 16 is provided on the back of the control panel 15. The panel carrier 16 can, for example, be a sheet steel. The panel carrier 16 comprises an opening or a recess 17. The recess 17 can, for example, have a rectangular geometry. The panel carrier 16 can be firmly connected to the device body 14, for example screwed to it.

In der Ausnehmung 17 aufgenommen ist eine Ein- und Ausgabeeinrichtung 18. Die Einund Ausgabeeinrichtung 18 kann ein Display, insbesondere ein Touchdisplay, sein. Mit Hilfe der Ein- und Ausgabeeinrichtung 18 kann beispielsweise ein Betriebszustand des HaushaltsgerƤts 1 angezeigt oder ausgegeben werden. Gleichzeitig ist die Ein- und Ausgabeeinrichtung 18 auch geeignet, eine Eingabe, beispielsweise eine Programmwahl, eines Benutzers an das HaushaltsgerƤt 1 zu erfassen. Beispielsweise kann die Ein- und Ausgabeeinrichtung 18 eine BerĆ¼hrung der Bedienfront 15 erfassen. Die Ein- und Ausgabeeinrichtung 18 kann mit der Bedienfront 15 verklebt sein. Insbesondere ist die Ein- und Ausgabeeinrichtung 18 rĆ¼ckseitig an der Bedienfront 15 vorgesehen. Die Ein- und Ausgabeeinrichtung 18 kann eine sensorische Bedienerfassungseinrichtung sein oder als solche bezeichnet werden.An input and output device 18 is accommodated in the recess 17. The input and output device 18 can be a display, in particular a touch display. With the help of the input and output device 18, for example, an operating state of the household appliance 1 can be displayed or output. At the same time, the input and output device 18 is also suitable for detecting an input, for example a program selection, from a user on the household appliance 1. For example, the input and output device 18 can detect a touch of the operating front 15. The input and output device 18 can be glued to the operating front 15. In particular, the input and output device 18 is provided on the back of the operating front 15. The input and output device 18 can be a sensory operator detection device or can be referred to as such.

Ferner ist in der Ausnehmung 17 ein Haptikaktuator 19 aufgenommen. Der Haptikaktuator 19 ist neben der Ein- und Ausgabeeinrichtung 18 positioniert. Der Haptikaktuator 19 ist insbesondere durch die Ausnehmung 17 des BlendentrƤgers 16 hindurch zu der Bedienfront 15 gefĆ¼hrt. Der Haptikaktuator 19 ist fest mit der Bedienfront 15 verbunden. Beispielsweise kann der Haptikaktuator 19 mit der Bedienfront 15 verklebt sein. Insbesondere ist der Haptikaktuator 19 rĆ¼ckseitig auf die Bedienfront 15 aufgeklebt. Der Haptikaktuator 19 kann auch als Haptikstellelement oder BerĆ¼hrungsrĆ¼ckmeldeelement bezeichnet werden.Furthermore, a haptic actuator 19 is accommodated in the recess 17. The haptic actuator 19 is positioned next to the input and output device 18. The haptic actuator 19 is in particular through the recess 17 of the panel carrier 16 to the operating front 15. The haptic actuator 19 is firmly connected to the operating front 15. For example, the haptic actuator 19 can be glued to the operating front 15. In particular, the haptic actuator 19 is glued to the back of the operating front 15. The haptic actuator 19 can also be referred to as a haptic actuating element or touch feedback element.

Der Haptikaktuator 19 kann ein zylinderfƶrmiges Bauteil sein. Mit Hilfe des Haptikaktuators 19 ist es mƶglich, Ć¼ber die Bedienfront 15 ein haptisches Signal, beispielsweise in Form von Vibrationen, an den Benutzer auszugeben, so dass dieser eine RĆ¼ckmeldung auf eine von dem Benutzer getƤtigte Eingabe an die Ein- und Ausgabeeinrichtung 18 erhƤlt. Der Haptikaktuator 19 ist bevorzugt ein Kƶrperschallwandler (Engl.: exciter) oder kann als solcher bezeichnet werden. Bei einem "Kƶrperschallwandler" handelt es sich um einen elektrodynamischen Lautsprecher ohne Membran. Dies heiƟt, eine Schwingspule des Haptikaktuators 19 treibt keine Lautsprechermembran an, sondern ist direkt mit der Bedienfront 15 verbunden. Die Bedienfront 15 kann entsprechend dem haptischen Signal in Schwingungen versetzt werden.The haptic actuator 19 can be a cylindrical component. With the help of the haptic actuator 19, it is possible to output a haptic signal, for example in the form of vibrations, to the user via the control panel 15, so that the user receives feedback on an input made by the user to the input and output device 18. The haptic actuator 19 is preferably a structure-borne sound transducer (English: exciter) or can be referred to as such. A "structure-borne sound transducer" is an electrodynamic loudspeaker without a membrane. This means that a voice coil of the haptic actuator 19 does not drive a loudspeaker membrane, but is directly connected to the control panel 15. The control panel 15 can be set into vibration according to the haptic signal.

Der Haptikaktuator 19 und die Ein- und Ausgabeeinrichtung 18 sind mit einer Steuereinheit 20 gekoppelt. Die Steuereinheit 20 erfasst beispielsweise eine BerĆ¼hrung der Bedienfront 15 mit Hilfe der Ein- und Ausgabeeinrichtung 18. Die Steuereinheit 20 kann ferner den Haptikaktuator 19 ansteuern. Mit Hilfe der Steuereinheit 20 erfolgt ein haptisches und/oder akustisches Signal, insbesondere ein RĆ¼ckmeldesignal, an den Benutzer mit Hilfe eines entsprechenden Ansteuerns des Haptikaktuators 19. Das haptische Signal kann ein Vibrieren der Bedienfront 15 sein.The haptic actuator 19 and the input and output device 18 are coupled to a control unit 20. The control unit 20 detects, for example, a touch of the operating front 15 with the aid of the input and output device 18. The control unit 20 can also control the haptic actuator 19. With the aid of the control unit 20, a haptic and/or acoustic signal, in particular a feedback signal, is sent to the user by means of a corresponding control of the haptic actuator 19. The haptic signal can be a vibration of the operating front 15.

Das akustische Signal kann beispielsweise ein KlickgerƤusch sein. Das akustische Signal soll insbesondere durch ein ausgewƤhltes KlickgerƤusch das BediengerƤusch eines mechanischen Schalters bestmƶglich simulieren. Dies ergibt in Verbindung mit der haptischen RĆ¼ckmeldung ein angenehmes taktiles GefĆ¼hl bei der BetƤtigung der Bedienblende 12. Dabei kann das akustische Signal entweder dem haptischen Signal des Haptikaktuators 19 Ć¼berlagert werden oder mit Hilfe eines separaten akustischen Signalgeber 21 ausgestrahlt werden. Der akustische Signalgeber 21 ist ebenfalls mit der Steuereinheit 20 gekoppelt. Der akustische Signalgeber 21 kann ein Lautsprecher sein.The acoustic signal can be a clicking sound, for example. The acoustic signal should simulate the operating sound of a mechanical switch as best as possible, in particular through a selected clicking sound. In conjunction with the haptic feedback, this results in a pleasant tactile feeling when operating the control panel 12. The acoustic signal can either be superimposed on the haptic signal of the haptic actuator 19 or emitted using a separate acoustic signal generator 21. The acoustic signal generator 21 is also coupled to the control unit 20. The acoustic signal generator 21 can be a loudspeaker.

Die Ein- und Ausgabeeinrichtung 18 ist, wie zuvor erwƤhnt, fest mit der Bedienfront 15 verbunden. Beispielsweise ist die Ein- und Ausgabeeinrichtung 18 mit der Bedienfront 15 verklebt. Die Bedienblende 12 ist fest mit dem GerƤtekorpus 14 verbunden. Somit wird die gesamte Bedienblende 12 bei der Bedienung derselben haptisch angeregt.The input and output device 18 is, as previously mentioned, firmly connected to the control panel 15. For example, the input and output device 18 is glued to the control panel 15. The control panel 12 is firmly connected to the device body 14. The entire control panel 12 is thus stimulated haptically when it is operated.

Die Bedienblende 12 kann jedoch auch schwingend ausgefĆ¼hrt werden. In diesem Fall wird diese nicht fest mit dem GerƤtekorpus 14 verbunden, sondern mittels elastischer Bauteile mit diesem gekoppelt beziehungsweise in diese eingehƤngt. Als elastische Bauteile kommen beispielsweise mechanische Federn oder gummiartige Materialien zum Einsatz. Der Haptikaktuator 19 kann somit die elastisch aufgehƤngte Bedienblende 12 leichter in mechanische Schwingungen versetzen, was eine verbesserte haptische RĆ¼ckmeldung des Haptikaktuators 19 ermƶglicht.The control panel 12 can also be designed to swing. In this case, it is not firmly connected to the device body 14, but is coupled to it or suspended in it by means of elastic components. Mechanical springs or rubber-like materials, for example, are used as elastic components. The haptic actuator 19 can thus more easily cause the elastically suspended control panel 12 to vibrate mechanically, which enables improved haptic feedback from the haptic actuator 19.

Die Fig. 4 zeigt eine schematische Vorderansicht einer weiteren AusfĆ¼hrungsform einer Bedienblende 12. Auch in der Fig. 4 sind verdeckte Bauteile gestrichelt dargestellt. Die Fig. 5 zeigt eine schematische Schnittansicht der Bedienblende 12 gemƤƟ der Schnittlinie V-V der Fig. 4. Nachfolgend wird auf die Fig. 4 und 5 gleichzeitig Bezug genommen.The Fig.4 shows a schematic front view of another embodiment of a control panel 12. Also in the Fig.4 Hidden components are shown in dashed lines. The Fig.5 shows a schematic sectional view of the control panel 12 according to the section line VV of the Fig.4 . The following refers to the Fig.4 and 5 referred to at the same time.

Die Bedienblende 12 umfasst neben der zuvor schon erwƤhnten Bedienfront 15 und dem BlendentrƤger 16 ein Zwischenelement 22. Der BlendentrƤger 16 umfasst eine wie zuvor schon erlƤuterte Ausnehmung 17. Das Zwischenelement 22 ist zwischen der Bedienfront 15 und dem BlendentrƤger 16 angeordnet. Bevorzugt ist das Zwischenelement 22 mit der Bedienfront 15 und mit dem BlendentrƤger 16 verklebt. Das Zwischenelement 22 ist vorzugsweise aus einem Kunststoffmaterial gefertigt. Insbesondere kann das Zwischenelement 22 aus Polymethylmethacrylat (PMMA) gefertigt sein. Das Zwischenelement 22 umfasst eine Ausnehmung 23, in der eine wie zuvor erlƤuterte Ein- und Ausgabeeinrichtung 18 aufgenommen ist. Die Ein- und Ausgabeeinrichtung 18 kann mit der Bedienfront 15 verklebt sein.In addition to the previously mentioned operating front 15 and the panel carrier 16, the control panel 12 comprises an intermediate element 22. The panel carrier 16 comprises a recess 17 as previously explained. The intermediate element 22 is arranged between the operating front 15 and the panel carrier 16. The intermediate element 22 is preferably glued to the operating front 15 and to the panel carrier 16. The intermediate element 22 is preferably made of a plastic material. In particular, the intermediate element 22 can be made of polymethyl methacrylate (PMMA). The intermediate element 22 comprises a recess 23 in which an input and output device 18 as previously explained is accommodated. The input and output device 18 can be glued to the operating front 15.

Ferner umfasst das Zwischenelement 22 DurchbrĆ¼che oder Ausnehmungen 24 bis 27, in denen wie zuvor erlƤuterte Haptikaktuatoren 19 aufgenommen sind. Das heiƟt, es sind mehrere Haptikaktuatoren 19 vorgesehen. Beispielsweise kƶnnen vier derartige Haptikaktuatoren 19 vorgesehen sein, die durch den BlendentrƤger 16 und das Zwischenelement 22 hindurchgefĆ¼hrt sind. Die Haptikaktuatoren 19 sind mit einer wie zuvor erlƤuterten Steuereinheit 20 gekoppelt. Ferner ist auch eine optionaler akustischer Signalgeber 21 mit der Steuereinheit 20 wirkverbunden. Das Zwischenelement 22 umfasst weiterhin DurchbrĆ¼cke oder Ausnehmungen 28 bis 30, mit deren Hilfe eine Wellenausbreitung eines mit Hilfe der Haptikaktuatoren 19 erzeugten Kƶrperschalls beeinflussbar ist. Die Anzahl und die Form der Ausnehmungen 28 bis 30 ist beliebig. Die Ausnehmungen 28 bis 30 durchbrechen das Zwischenelement 22 vollstƤndig oder nur teilweise.Furthermore, the intermediate element 22 comprises openings or recesses 24 to 27 in which haptic actuators 19 are accommodated as previously explained. This means that several haptic actuators 19 are provided. For example, four such haptic actuators 19 can be provided, which are arranged through the panel carrier 16 and the intermediate element 22. The haptic actuators 19 are coupled to a control unit 20 as previously explained. Furthermore, an optional acoustic signal generator 21 is also operatively connected to the control unit 20. The intermediate element 22 further comprises through-bridges or recesses 28 to 30, with the aid of which a wave propagation of a structure-borne sound generated with the aid of the haptic actuators 19 can be influenced. The number and shape of the recesses 28 to 30 is arbitrary. The recesses 28 to 30 penetrate the intermediate element 22 completely or only partially.

Um eine spĆ¼rbare Haptik beziehungsweise um eine optimale SchallĆ¼bertragung fĆ¼r Akustiksignale bei einer BetƤtigung der Bedienblende 12 zu erreichen, ist es erforderlich, dass die Bedienblende 12 in Schwingungen versetzt werden kann und somit so frei wie mƶglich schwingen kann. Je mehr starre Verbindungen zwischen der Bedienfront 15 und dem BlendentrƤger 16 vorgesehen sind, desto weniger schwingfƤhig ist das System. Daher ist eine gewisse FlƤche auf der Bedienfront 15 von starren Verbindungen freizusparen. Dies erfolgt beispielsweise mit Hilfe der Ausnehmungen 28 bis 30. Die GrĆ¶ĆŸe und Form dieser Freisparungen richtet sich nach der GrĆ¶ĆŸe des Bereichs, in dem ein haptisches Bedien-Feedback erfolgen soll. Die MindestgrĆ¶ĆŸe dieser Freisparung wird durch die GrĆ¶ĆŸe der Ein- und Ausgabeeinrichtung 18, welche auf der RĆ¼ckseite der Bedienfront 15 angeordnet ist, festgelegt. Sollte an dieser Stelle auf eine gewisse mechanische Stabilisierung des BlendentrƤgers 16 nicht verzichtet werden kƶnnen, ist die Verbindung so auszufĆ¼hren, dass sich die Haptik beziehungsweise die Kƶrperschallwellen trotzdem ausbreiten kƶnnen.In order to achieve a noticeable haptic effect or optimal sound transmission for acoustic signals when the control panel 12 is operated, it is necessary that the control panel 12 can be set into vibration and can therefore vibrate as freely as possible. The more rigid connections are provided between the control panel 15 and the panel carrier 16, the less capable of vibrating the system is. Therefore, a certain area on the control panel 15 must be kept free of rigid connections. This is done, for example, with the help of the recesses 28 to 30. The size and shape of these recesses depends on the size of the area in which haptic operating feedback is to take place. The minimum size of this recess is determined by the size of the input and output device 18, which is arranged on the back of the control panel 15. If a certain mechanical stabilization of the panel carrier 16 cannot be dispensed with at this point, the connection must be designed in such a way that the haptic effect or the structure-borne sound waves can still spread.

Die Ɯbertragung der Haptik auf die Bedienfront 15 ist stark abhƤngig von dem mechanischen und geometrischen Aufbau der Bedienblende 12. Dieser Aufbau bestimmt dabei, entsprechend der gewĆ¼nschten StƤrke der haptischen RĆ¼ckmeldung, eine Anpassung beziehungsweise eine Reduzierung der Leistung des Haptikaktuators 19 und/oder der Signaldauer des haptischen Signals. Die Position des Haptikaktuators 19 an der Bedienfront 15 ist abhƤngig davon, ob nur einzelne Bereiche derselben oder die gesamte Bedienfront 15 mit dem haptischen Feedback ausgestattet werden soll.The transfer of the haptics to the control panel 15 is highly dependent on the mechanical and geometric structure of the control panel 12. This structure determines an adjustment or reduction of the power of the haptic actuator 19 and/or the signal duration of the haptic signal, depending on the desired strength of the haptic feedback. The position of the haptic actuator 19 on the control panel 15 depends on whether only individual areas of the same or the entire control panel 15 is to be equipped with the haptic feedback.

Bei der haptischen Ausstattung einzelner BetƤtigungsbereiche oder Touchbuttons kann der Haptikaktuator 19 auf der RĆ¼ckseite der Bedienfront 15, direkt an der Position des Touchbuttons beziehungsweise unmittelbar links oder rechts neben dem Touchbutton angebracht werden. Die Haptik soll dabei nur lokal an der Stelle des Touchbuttons wahrgenommen werden. Umliegende Bereiche des Touchbuttons werden dabei durch das Haptiksignal nur noch schwach angeregt und nicht als haptisches Feedback wahrgenommen. Dies kann bewerkstelligt werden, indem ein Kƶrperschall absorbierendes Material an der Bedienblende 12 aufgebracht und an den Positionen der punktuellen Haptik freigespart wird. Dies kann beispielsweise das Kunststoffmaterial des Zwischenelements 22 sein. Alternativ kann ein entsprechender Haptikaktuator 19 mit geringerer Leistung verwendet werden.When equipping individual operating areas or touch buttons with haptics, the haptic actuator 19 can be mounted on the back of the operating panel 15, directly at the position of the touch button or immediately to the left or right of the touch button. The haptics should only be perceived locally at the location of the touch button. Surrounding areas of the touch button are only weakly stimulated by the haptic signal and are not perceived as haptic feedback. This can be achieved by applying a material that absorbs structure-borne sound to the control panel 12 and leaving space at the positions of the point haptics. This can be the plastic material of the intermediate element 22, for example. Alternatively, a corresponding haptic actuator 19 with lower power can be used.

Um die Haptik auf der Bedienfront 15 lokal noch stƤrker spĆ¼rbar zu machen, kann die Bedienblende 12 an diesen Stellen mechanisch dĆ¼nner, insbesondere durch Einsenkungen auf der RĆ¼ckseite der Bedienfront 15, ausgefĆ¼hrt werden. Dabei kann die Einsenkung der Bedienfront 15 an der Stelle erfolgen, wo der Haptikaktuator 19 angeordnet ist. In diesem Fall sitzt der Haptikaktuator 19 in einer Vertiefung. Durch diese Vertiefung ist die Bedienfront 15 an dieser Stelle dĆ¼nner, wobei eine leichtere Anregung der Bedienfront 15 durch den Haptikaktuator 19 mƶglich wird. Alternativ kann der Bereich, in dem die Haptik wahrgenommen werden soll, eingesenkt werden. Durch die dĆ¼nnere Bedienfront 15 ist die Haptik besser spĆ¼rbar, ohne die StƤrke der Haptik zu verƤndern. Dabei kann die Position des Haptikaktuators 19 und der Einsenkung unabhƤngig voneinander gewƤhlt werden. Sollen grĆ¶ĆŸere Bereiche mit haptischem Feedback ausgestattet werden, sind, wie mit Bezug auf die Fig. 4 und 5 erlƤutert, mehrere Haptikaktuatoren 19 vorzusehen, die links und/oder rechts neben der Ein- und Ausgabeeinrichtung 18 anzuordnen sind.In order to make the haptics on the control panel 15 even more noticeable locally, the control panel 12 can be made mechanically thinner at these points, in particular by means of recesses on the back of the control panel 15. The recess in the control panel 15 can be made at the point where the haptic actuator 19 is arranged. In this case, the haptic actuator 19 is located in a recess. This recess makes the control panel 15 thinner at this point, which makes it easier to stimulate the control panel 15 by the haptic actuator 19. Alternatively, the area in which the haptics are to be perceived can be recessed. The thinner control panel 15 makes the haptics more noticeable without changing the strength of the haptics. The position of the haptic actuator 19 and the recess can be selected independently of one another. If larger areas are to be equipped with haptic feedback, as described with reference to the Fig.4 and 5 explains the provision of several haptic actuators 19, which are to be arranged to the left and/or right of the input and output device 18.

Um nun auf AusfrƤsungen an der Bedienfront 15 selbst verzichten zu kƶnnen, die nur sehr schwierig und sehr teuer herzustellen sind, ist der zuvor erlƤuterte dreiteilige Aufbau mit dem Zwischenelement 22 der Bedienfront 15 und dem BlendentrƤger 16 vorgesehen. Das Zwischenelement 22 kann bezĆ¼glich der Empfindlichkeit der Touchbuttons und der gewĆ¼nschten StƤrke der haptischen RĆ¼ckmeldung optimiert werden. Das Zwischenelement 22 weist dabei vorzugsweise eine WandstƤrke von etwa 3 mm auf. Dabei sind die Ausnehmungen 23 bis 27 fĆ¼r die Ein- und Ausgabeeinrichtung 18 und die Haptikaktuatoren 19 vorgesehen. Zur Schwingungsoptimierung der Bedienblende 12 sind die Ausnehmungen 28 bis 30 vorgesehen. Die Bedienfront 15, die vorzugsweise als Glasplatte ausgefĆ¼hrt ist, weist, wie zuvor schon erwƤhnt, bevorzugt eine WandstƤrke von etwa 1,5 mm auf. Aufgrund des dĆ¼nnen Materials der Bedienfront 15 ergibt sich eine einfachere und bessere funktionierende Touch- und Haptikimplementierung.In order to avoid milling on the control panel 15 itself, which is very difficult and very expensive to produce, the three-part structure explained above with the intermediate element 22 of the control panel 15 and the panel carrier 16 is provided. The intermediate element 22 can be optimized with regard to the sensitivity of the touch buttons and the desired strength of the haptic feedback. The intermediate element 22 preferably has a wall thickness of about 3 mm. The recesses 23 to 27 are provided for the input and output device 18 and the haptic actuators 19. The recesses 28 to 30 are provided to optimize the vibration of the control panel 12. The control panel 15, which is preferably designed as a glass plate, preferably has a wall thickness of about 1.5 mm, as already mentioned. mm. Due to the thin material of the operating front 15, a simpler and better functioning touch and haptic implementation results.

Unsymmetrien im Aufbau der Bedienblende 12, das heiƟt unterschiedliche HaptikstƤrken auf der Bedienfront 15, kƶnnen durch VerƤnderungen der Haptikdauer und der Leistung des Haptikaktuators 19 ausgeglichen werden. Insbesondere kƶnnen diese aber auch durch die VerƤnderung der Haptikaktuatoren 19 selbst kompensiert werden, wenn keine VerƤnderungen an der Leistung des Haptikaktuators 19 beziehungsweise der Haptikdauer vorgenommen werden sollen. Dies kann beispielsweise aufgrund stƶrender Akustikeffekte erforderlich sein. Die Position des Haptikaktuators 19 beziehungsweise der Haptikaktuatoren 19 auf der Bedienfront 15 ist so zu wƤhlen, dass sich die Reflexionsschwingungen, welche an den Kanten der Bedienblende 12 entstehen, an der Ein- und Ausgabeeinrichtung 18 mit der Erregerschwingung des Haptikaktuators 19 maximal Ć¼berlagern.Asymmetries in the structure of the control panel 12, i.e. different haptic strengths on the control front 15, can be compensated by changing the haptic duration and the performance of the haptic actuator 19. In particular, these can also be compensated by changing the haptic actuators 19 themselves if no changes are to be made to the performance of the haptic actuator 19 or the haptic duration. This can be necessary, for example, due to disruptive acoustic effects. The position of the haptic actuator 19 or the haptic actuators 19 on the control front 15 must be selected such that the reflection vibrations that arise at the edges of the control panel 12 overlap as much as possible with the excitation vibration of the haptic actuator 19 at the input and output device 18.

Jede zuvor erwƤhnte AusfĆ¼hrungsform der Bedienblende 12 erfƤhrt eine maximale Schwingungsanregung durch den Haptikaktuator 19 in einem bestimmten Frequenzbereich. Dieser wird durch die Resonanzfrequenz der Bedienblende 12 bestimmt und ist abhƤngig von den beiden Speicherelementen Masse und innerer Feder der eingesetzten Materialien. Die innere DƤmpfung der Materialien des Gesamtsystems Bedienblende 12 bestimmt dabei die GĆ¼te des Schwingungssystems und somit die Amplitude der mechanischen Schwingung und die Breite des Frequenzbereichs. Im Bereich der Resonanzfrequenz kann die Leistung je nach GĆ¼te der Resonanz stark verringert werden. Je stƤrker sich die Resonanzschwingung ausbildet, desto geringer kann die Leistung des Haptikaktuators 19 gewƤhlt werden, aber desto schmalbandiger wird der Frequenzbereich. Durch eine entsprechende Wahl beziehungsweise Variierung der Frequenz des Haptikaktuators 19 kann somit die Haptikfunktion bezĆ¼glich Fertigungstoleranzen aller Bauteile und bestmƶglicher Schwingungserzeugung optimiert werden.Each previously mentioned embodiment of the control panel 12 experiences a maximum vibration excitation by the haptic actuator 19 in a certain frequency range. This is determined by the resonance frequency of the control panel 12 and depends on the two storage elements, mass and internal spring of the materials used. The internal damping of the materials of the entire control panel 12 system determines the quality of the vibration system and thus the amplitude of the mechanical vibration and the width of the frequency range. In the range of the resonance frequency, the power can be greatly reduced depending on the quality of the resonance. The stronger the resonance vibration, the lower the power of the haptic actuator 19 can be selected, but the narrower the frequency range becomes. By selecting or varying the frequency of the haptic actuator 19 accordingly, the haptic function can be optimized with regard to manufacturing tolerances of all components and the best possible vibration generation.

Die SchallĆ¼bertragungsentkopplung gegenĆ¼ber dem umliegenden GerƤtekorpus 14 bezĆ¼glich dessen Hohlraumresonanzen und mitschwingender Materialien sind ebenfalls konstruktiv zu lƶsen. Dies kann beispielsweise durch die gezielte Anbringung von schweren Adsorbermaterialien erfolgen, wodurch stƶrende Kƶrperschallresonanzen gedƤmpft werden. Neben dem konstruktiven Aufbau der Bedienblende 12 zur Optimierung der Bedienhaptik kann es somit zusƤtzlich notwendig sein, die Verbindung zwischen dem GerƤtekorpus 14 und der Bedienblende 12 schalltechnisch zu entkoppeln.The sound transmission decoupling from the surrounding device body 14 with regard to its cavity resonances and resonating materials must also be solved structurally. This can be achieved, for example, by the targeted attachment of heavy adsorber materials, which dampens disturbing structure-borne sound resonances. In addition to the structural design of the control panel 12 to optimize the operating feel It may therefore also be necessary to acoustically decouple the connection between the device body 14 and the control panel 12.

Durch die Schwingungen des Haptikaktuators 19 wird die Bedienblende 12 in Schwingung versetzt. Diese Schwingungen Ć¼bertragen sich auch auf die umliegenden Materialien und kƶnnen als stƶrendes GerƤusch wahrgenommen werden. Um dies zu verhindern, kann die Anzahl der Verbindungen, beispielsweise der Verschraubungen, zwischen dem GerƤtekorpus 14 und der Bedienblende 12 reduziert werden. Alternativ kƶnnen die bestehenden Verbindungen kƶrperschalltechnisch durch elastische AufhƤngungen entkoppelt werden. Auch Verbindungsmaterialien mit groƟer innerer DƤmpfung kƶnnen in diesem Fall den stƶrenden Kƶrperschall reduzieren.The vibrations of the haptic actuator 19 cause the control panel 12 to vibrate. These vibrations are also transmitted to the surrounding materials and can be perceived as disturbing noise. To prevent this, the number of connections, for example screw connections, between the device body 14 and the control panel 12 can be reduced. Alternatively, the existing connections can be decoupled from structure-borne noise using elastic suspensions. Connecting materials with high internal damping can also reduce the disturbing structure-borne noise in this case.

Die zuvor erlƤuterte Bedienblende 12 umfasst eine Vielzahl an Vorteilen. Es wird zum einen die Mƶglichkeit geschaffen, eine starre Bedienblende 12 mit einer Haptik auszustatten. Die Leistung des Haptikaktuators 19 kann durch den zuvor beschriebenen konstruktiven dreischichtigen Aufbau der Bedienblende 12 reduziert werden. Die haptische Touch-Wahrnehmung kann durch die beschriebene konstruktive Beeinflussung der Bedienblende 12 verbessert werden. Es ergibt sich die Mƶglichkeit punktueller Haptik auf einer starren Bedienblende 12 mit Hilfe mehrerer Haptikaktuatoren 19 mit reduzierter Leistung. Obwohl die vorliegende Erfindung anhand von AusfĆ¼hrungsbeispielen beschrieben wurde, ist sie vielfƤltig modifizierbar im Rahmen des Schutzumfangs der AnsprĆ¼che.The control panel 12 explained above has a number of advantages. On the one hand, it creates the possibility of equipping a rigid control panel 12 with a haptic element. The performance of the haptic actuator 19 can be reduced by the three-layer design of the control panel 12 described above. The haptic touch perception can be improved by the described design influencing of the control panel 12. This results in the possibility of selective haptics on a rigid control panel 12 with the help of several haptic actuators 19 with reduced performance. Although the present invention has been described using exemplary embodiments, it can be modified in many ways within the scope of the claims.

Verwendete Bezugszeichen:Reference symbols used:

11
HaushaltsgerƤtHousehold appliance
22
AufnahmeraumRecording room
33
TĆ¼rdoor
44
UnterkanteBottom edge
55
OberkanteTop edge
66
GriffHandle
77
BodenFloor
88th
DeckeCeiling
99
RĆ¼ckwandBack wall
1010
SeitenwandSide wall
1111
SeitenwandSide wall
1212
BedienblendeControl panel
1313
SteuereinrichtungControl device
1414
GerƤtekorpusDevice body
1515
BedienfrontControl panel
1616
BlendentrƤgerPanel carrier
1717
AusnehmungRecess
1818
Ein- und AusgabeeinrichtungInput and output device
1919
HaptikaktuatorHaptic actuator
2020
SteuereinheitControl unit
2121
SignalgeberSignal generator
2222
ZwischenelementIntermediate element
2323
AusnehmungRecess
2424
AusnehmungRecess
2525
AusnehmungRecess
2626
AusnehmungRecess
2727
AusnehmungRecess
2828
AusnehmungRecess
2929
AusnehmungRecess
3030
AusnehmungRecess

Claims (15)

  1. Operator control panel (12) for a household appliance (1), in particular for a household cooking appliance, with an operator control front (15), a panel carrier (16) which supports the operator control front (15), and a haptic actuator (19) which is coupled to the operator control front (15) in order, during an operator control procedure of the operator control panel (12), to output a haptic signal as feedback to a user in response to the operator control procedure with the aid of the operator control front (15), wherein the panel carrier (16) has a recess (17), through which the haptic actuator (19) is guided to the operator control front (15), and wherein the haptic actuator (19) is attached to the rear side of the operator control front (15).
  2. Operator control panel according to claim 1, characterised in that the haptic actuator (19) is suitable for outputting an acoustic signal as feedback in response to the operator control procedure.
  3. Operator control panel according to claim 1, further comprising an acoustic signal emitter (21) for outputting an acoustic signal as feedback in response to the operator control procedure.
  4. Operator control panel according to one of claims 1-3, further comprising an input and output facility (18) for detecting the operator control procedure and for outputting an operating state of the household appliance (1).
  5. Operator control panel according to claim 4, characterised in that the input and output facility (18) is accommodated in the recess (17).
  6. Operator control panel according to claim 4 or 5, characterised in that the haptic actuator (19) is arranged adjacent to the input and output facility (18).
  7. Operator control panel according to one of claims 4-6, further comprising a large number of haptic actuators (19), which are arranged distributed around the input and output facility (18).
  8. Operator control panel according to one of claims 1-7, further comprising an intermediate element (22), which is arranged between the operator control front (15) and the panel carrier (16).
  9. Operator control panel according to claim 8, characterised in that the haptic actuator (19) is guided through the intermediate element (22).
  10. Operator control panel according to claim 8 or 9, characterised in that the intermediate element (22) is adhesively bonded to the operator control front (15) and the panel carrier (16).
  11. Operator control panel according to one of claims 8 - 10, characterised in that the intermediate element (22) is made of a plastic material, in particular from polymethyl methacrylate, and the operator control front (15) is made of glass.
  12. Operator control panel according to one of claims 8 - 11, characterised in that the intermediate element (22) comprises recesses (28 - 30), with the aid of which it is possible to influence the propagation of waves of a structure-borne sound generated with the aid of the haptic actuator (19).
  13. Operator control panel according to claim 12, characterised in that the recesses (28 - 30) in each case form a local depression on the operator control panel (12), which makes it possible to achieve a local influencing of the haptic signal.
  14. Household appliance (1), in particular household cooking appliance, with an operator control panel (12) according to one of claims 1-13.
  15. Household cooking appliance according to claim 14, characterised in that an appliance carcass (14) of the household appliance (1) has an insulating material, in order to absorb structure-borne sound resonances of the haptic actuator (19).
EP20707246.3A 2019-03-01 2020-02-25 Operator control panel and domestic appliance Active EP3931492B1 (en)

Applications Claiming Priority (2)

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DE102019202805.5A DE102019202805A1 (en) 2019-03-01 2019-03-01 Control panel and household appliance
PCT/EP2020/054906 WO2020178079A1 (en) 2019-03-01 2020-02-25 Operator control panel and domestic appliance

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EP3931492A1 EP3931492A1 (en) 2022-01-05
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CN (1) CN113508262B (en)
DE (1) DE102019202805A1 (en)
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WO (1) WO2020178079A1 (en)

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DE102020207203A1 (en) 2020-06-09 2021-12-09 BSH HausgerƤte GmbH Input device for household appliances

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US20220136705A1 (en) 2022-05-05
EP3931492A1 (en) 2022-01-05
US11988394B2 (en) 2024-05-21
CN113508262A (en) 2021-10-15
WO2020178079A1 (en) 2020-09-10
DE102019202805A1 (en) 2020-09-03
CN113508262B (en) 2024-06-07
PL3931492T3 (en) 2024-08-12

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